Governor.



W. Tex.

GOVERNOR. APPLICATION FILED NOV 20, 1908.

922,689. Patented May 25, 1909.

WITNESSES: INVENTOR Q K/ flag, WI LL'IAM a, mm 1W A TTORNEY THE NORRISPETERS cm, WASHINGTON, n. c.

WILLIAM FOX, OF PECK, MICHIGAN.

GOVERNOR.

Specification of Letters Patent.

Patented May 25, 1909.

Application filed November 20, 1908. Serial No. 463,577.

To all whom it may concern:

Be it known that I, iVrLLIAM Fox, a citizen of the United States ofAmerica, residing at Peck, in the county of Sanilac and State ofMichigan, have invented certain new and useful Improvements inGovernors, of which the following is a specification, reference beinghad therein to the accompanying drawings.

This invention relates to governors for steam engines and moreespecially to an arrangement thereof peculiarly adapted for tractionengines whereby the limit of speed of the engine may be varied at thewill of the operator without shutting down the engine itself andire-adjusting the governor in the ordinary way.

The invention consists in the matters hereinafter set forth and moreparticularly pointed out in the appended claims.

The drawing is a view in vertical section of a governor embodying oneform of the invention mounted on the cylinder of a traction engine orthe like.

As shown in the figure a valve casing 1 of any conventional standardtype is secured on the inlet of a steam cylinder 2 with the usual steamfittings 3 running to the throttle valve and other controlling means. Astandard 4 of any preferred suitable design is secured on the casing anda vertical, longitudinally reciprocable spindle 6 is journaled in theupper portion thereof in axial alinement with an apertured valve seat 7in the casing 1. The vertical position of this spindle is controlled bythe usual centrifugal means as for example, weights or balls 8 connectedby bell cranks 9 to the upper end of the spindle, a spring 10 limitingthe outward movement of the balls when they are rotated by a bevel gearyoke 11 meshed to a driving gear 12 driven through the usual belt andpulley connections 13 from some rotating member of the engine proper,all these parts being of conventional standard type.

A valve closure 14 for the seat '7 is carried by a verticallyreoiprocable member 15 passing through a packing box 16 in the bonnet ofthe casing 1 in axial alinement with the stem 6. The latter and themember 15 are made to move in unison by a suitable connec tion movabletransversely to the stem and member and provided with guides wherebymovement of the connection transversely to the stem se arates the stemand member or else draws t em together.

As a preferred form of construction, a pair of divergent rods 17suitably secured as by a cap 18 at one end and a cross-bar 19 at theirdivergent ends, have sliding engagement with guide blocks 20 secured onthe proximate ends of the stem and member. A link 21 connected to thecross-rod 19, a lever 22 articulated thereto and pivoted in a suitablebracket 23, and a bar 24 extending to the engineer's station on theengine form one means of shifting the connection in or out. Anyconvenient method of doing this may of course be used, its arrangementdepending largely on the type of engine to which the governor isattached.

The divergent guides or rods 17, are disposed at such an angle to eachother that the weight of the member 15 will not cause them to shift ofthemselves in the guide blocks 20 when in operation.

In operation, the engine governor is adjusted 1n the usual way to run ata normal mean speed. When on the road, if it is desired that the enginerevolve at a higher than the mean speed, the engineer shifts theconnection between the stem and valve member so that the valve closureis raised to a greater extent from its seat. Consequently, when thelatter is open to the full extent, the governor allows the engine to runat a higher than mean speed. In other words, the engineer can vary thespeed at which the governor controls the engine at will without leavinghis station or stopping the engine.

The chief feature is the extreme simplicity of the connecting partswhich may be made very light and rigid and therefore do not increase theload or weight of the working parts of the governor. Furthermore, theconnection may be applied to any type of governor by sim ly cutting outa section of the valve stem thereof and substituting therefor theconnection with the slide blocks.

it is obvious, as before noted, that a plate with divergent guidegrooves or tracks, may be substituted for the divergent rods, al thoughthe lightness and cheapness of the construction of the latter make themmore desirable.

Obviously, changes in the details of construction may be made withoutdeparting from the spirit of the invention, and I do not care to limitmyself to any particular form or arrangement of parts.

What I claim as my invention is:-

1. A variable speed governor, comprising k 4.... WW

the combination with a steam valve casing, a closure therein, and amember for 0 erating the closure longitudinally reciprocab e in thecasing, of a standard on the casing, a stem in substantially aXialalinementwith the closures member longitudinally reciprocable in thestandard, a revoluble, centrifugally operated member reciprocating thestem, a connecting member having sliding connection With the stem andclosure member adapted when moved transversely thereto to move the stemand closure member to or from each other, and link and lever connectionsfor shifting the members.

2. A variable speed governor, comprising the combination with a steamvalve casing, a closure therein, and a member for operating the closurelongitudinally reciprocable in the casing, of a standard 011 the casing,a stem in substantially axial alinement with the closure memberlongitudinal y reciprocable in the standard, a revoluble, centrifugallyoperated member reciprocating the stem, a connection movabletransversely to the stem and closure member consisting of divergentguides engaged respectively by the stem and closure member, and meansfor shifting the connection.

3. A variable speed governor, comprising the combination with a steamvalve casing, a closure therein, and a member for operating the closurelongitudinally reciprocable in the casing, of a standard on the casing,a stem in substantially axial alinement with the closure memberlongitudinally reci rocable in the standard, a revoluble, centritugallyoperated member reciprocating the stem, a connecting member movabletransversely to the stem and closure member and having diverging guides,slide blocks on the stem and the closure member engaging said guides,and means for shifting the connecting member.

4. A variable speed governor, comprising the combination with a steamvalve casing, a closure therein, and a member for o erating the closurelongitudinally reciprocab e in the casing, of a standard on the casing,a stem in substantially axial alinement with the closure memberlongitudinally reciprocable in the.

standard, a revoluble, centrifugally operated member reciprocating thestem, a connection movable transversely to the stem and closure member,consisting of a pair of divergent rods secured together in spacedrelation at their ends, slide blocks on the stem and closure member,each longitudinally movable on one of said. rods, and means for shiftingthe connection.

In testimony whereof I afliX my signature in presence of two witnesses.

. WILLIAM FOX. Witnesses:

IRA BRIOKER, I'IOWARD FosTER.

